Toy building brick



FIG. 1 is a top isometric view of a toy building brick showing my newdesign, a bottom isometric view being a mirror image thereof;

FIG. 2 is a right side view of the toy building brick, a left side view,a rear view and front view being mirror images thereof;

FIG. 3 is a bottom view of the toy building brick; and,

FIG. 4 is a cross-sectional view of the toy building brick taken alongline 4-4 of FIG. 2 to illustrate an opening extending through toybuilding brick.

CLAIM The ornamental design for a toy building brick, as shown anddescribed.